PT-2017-13324 · Typo3 · Typo3

Maurizio Siddu · Published 2017-09-11 · Updated 2022-05-17 · CVE-2017-14251

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions TYPO3 versions 7.6.0 through 7.6.21 TYPO3 versions 8.0.0 through 8.7.4

Description The issue allows remote authenticated users to upload files with a .pht extension, which can lead to the execution of arbitrary PHP code due to an Unrestricted File Upload vulnerability in the fileDenyPattern in sysext/core/Classes/Core/SystemEnvironmentBuilder.php.

Recommendations For TYPO3 versions 7.6.0 through 7.6.21, update to a version outside of this range to mitigate the risk. For TYPO3 versions 8.0.0 through 8.7.4, update to a version outside of this range to mitigate the risk. As a temporary workaround, consider restricting file uploads to prevent the upload of files with a .pht extension until a patch is available.

Exploit

Fix

Unrestricted File Upload

Weakness Enumeration

CWE-434

Related Identifiers

CVE-2017-14251

GHSA-FH4Q-HXRW-CJQQ

Affected Products

Typo3

References · 8

• 🔥 https://typo3.org/teams/security/security-bulletins/typo3-core/typo3-core-sa-2017-007 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2017-14251 · Security Note
• https://osv.dev/vulnerability/GHSA-fh4q-hxrw-cjqq · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2017-14251 · Vendor Advisory
• https://github.com/TYPO3/typo3 · Note
• http://securitytracker.com/id/1039295 · Note
• http://securityfocus.com/bid/100620 · Note
• http://blog.emaze.net/2017/12/typo3-unrestricted-file-upload-remote.html · Note